The present investigation was carried out with an aim to studying some physio-morphological characters of wheat associated with yield under different soil moisture stress. The soil moisture stress as a whole reduced the yield and yield contributing characters of wheat. Correlation analysis of grain yield with yield attributing characters indicated a high positive correlation coefficient with total dry matter, crop growth rate, leaf number/plant, harvest index, spikelet number/spike and 1000 kernel weight. Growth analysis showed that both crown root initiation and heading stages were the...

Four epiphytic orchids viz., Dendrobium aphyllum, Vanda roxburghii, Rhynchostylis retusa, Luisia teretifolia collected from four places (Khulna, Coxs Bazar, Sylhet and Mymensingh) showed significant variation in different morphological and reproductive characters. The seeds of different species upon culture on to growth regulator free media were able to germinate asymbiotically and subsequent development into plantlet. Mature explants such as shoot tips, axilliary buds, leaf segments, flower stalk segments and root tips were also cultured in various types of culture media formulations....